Large geological feature known as the ‘Double Arch’ and the ‘Toilet Bowl’ collapses in southern Utah The Associated PressFamed Double Arch Collapses in Glen Canyon National Recreation Area The New York TimesTwo ancient North American structures crumble as tribes forewarn impending doom: ‘Bad omen’ New York Post ‘Double Arch’ at Glen Canyon National Recreation Area has collapsed: National Park Service FOX 10 News PhoenixPopular arch collapses in Glen Canyon National Recreation Area Yahoo! Voices